Crank-casing.



H. W. BOLENS.

cBANK cAsmG. APPLvlCATlON FILED APR.18, 1914.

Patented June 15, 1915.

HWI/1 7- HARRY W. BOLENS, OF PORT WASHINGTON, WISCONSIN.

CRANK-CASING.

Specification of Letters Patent.

Patented J une 315, 19M.

Application led April 18,1914. Serial No. 832,878.

T0 all whom it may concern.'

Be it known that I, HARRY W. BoLnNs, a

' citizen of the United States, and resident of Port Washington, in thecounty of Ozaukee and State of Wisconsin, have invented certain new anduseful Improvements in Crank- Casings; and I do hereby declare that thefollowing isa full, clear, and exact description thereof. y

My invention has for its primary object to provide a simple, economicaland convenient detachable crank-case for engines.

Specific objects of my invention are to provide a looped plate adaptedto encircle the crank-case having a ared end that is attached to thecylinder of the engine, its opposite end being supported by a transverseweb of the engine bed; to provide a crank-case having one portion in theform of a circular plate looped about the engine crank-shaft having aflared end that is secured to the engine cylinder, the opposite end ofthe loop Ybeingsecured tofa tray, which trayis tangentially disposedrelative to the loop end and removably supported within the bed of theengine, it being within the scope of my invention to connect the end lopof the plate to the engine bed in suh manner that it constitutes a partor extension of a removable tray, the same being supported bv the enginebed above the floor line.

With the above and other minor objects in view the invention consists incertain peculiarities of construction and combination of parts as setforth hereinafter with reference'to the accompanying drawings andsubsequently claimed.

In the drawings Figure l represents a sectional elevation of an enginebed and cylinder equipped with a crank-casing embodying the features ofmy invention, the section being indicated by line 1-1 of Fig. 2*, and

Fig. 2, a plan sectional view of the same, thesection being indicated byline 2-2 of Fig. l.

lteferring by characters to the drawings, l represents an engine bed ofany desired typeprovided with a cross-web 2 at its crank-shaftsupporting end, the upper stretch of said engine bed being formed with lone member 3 of a journal-box, into which journal-boxd is mounted thecrank-shaft of the engine, l.is-indicated by dotted lines in Fig. l Theopposite end of the bed carries the ordinary type of water-jacketedcylinder 5, which, in this instance, is shown asan integral part of saidbed. The bed is also provided with transversely extended lugs 6, whichlugs constitute supports for the rear end of a removable drip-pan in theform of a tray 7, the said .drip-pan being provided with upturned endand side walls, whereby oil thrown olf from the working parts of theengine is trapped, the said tray being extended from end to end of thebed, as shown. Secured to that end wall ofthe tray disposed under thecrank-shaft, is a downturned flange 8 of a circular looped shield 9, thesaid flange 8 being riveted or otherwise permanently attached in thiseX- emplification of my invention, to the tray end. The tray is of suchlength between its end' flanges as to lit comparatively snug between thecross-web 2 of the engine-bed and a transverse apron 2 at theother endof said engine bed, whereby said tray is held against end play. Therear' end of the tray is supported by the lugs 6 upon which said trayloosely rests and the front or crankshaft end of the tray is supportedby the circular shield plate which rests upon the upper face of thecross-web, the juxtaposed end of said tray being disposed below the topface of the cross-web, whereby lateral movement of the aforesaid tray isprevented in onev direction, while lateral movement in the oppositedirection is checked by the apron 2. As best shown in Fig. 2, the cir-'cular shield-plate extends upwardly and about the crank-shaft axis insomewhat spiral form, whereby clearance of the crankshaft oil-cup ishad, which-oil-cup, as shown in dotted lines, is attached to the enginepitman. The upper end of the circular shield is flared toward the mouthof the cylinder 5 and terminates with an aperture 9 for the reception ofa retaining member, which member, in this instance, constitutes thethreaded end 10 of the cylinder oil-cup 10. By. this connectionsimplicity in construction is had, whereby the shank of the oilcupserves as the permanent attaching member of the circular crank-shield.

From the foregoing description it is apparent that the shield and itspermanently attached tray can readily be removed or assembled withrelation tothe engine`by manipulation of the retaining member which, inthis instance, is, as stated, the

shank of the cylinder oil-cup that supplies, the cylinder.

while i have shown and. ascribed ai@ as being provided with a downturnedflange which is riveted to one of the end walls of the tray, it isobvious that may, without departing from the spirit of my invention, insome instances, support the tray independently of the shield portion. ltis also within the scope of my invention to form the circular portionof' the crank case and the tray portion in one piece withl out departingfrom the spirit of my invention.

I claim: l

1. An .engine crank-casing comprising a circular plate portion adaptedto be looped about the, engine crank having a flared securing end, and aremovable vertical tray portion constituting a tangential extension ofthe other end of the looped portion.

2. A crankcasing for engines comprising a circular plate portion havinga flared se curing end and a removable vertical tray portion havingupturned side and end walls, one of which end Walls is secured to theother terminal of the looped plate.

3. ln an engine having 'a hollow bed pro vided with crank-shaft journalboxes, and a cylinder supported by the engine bed; the combination of -atWo-par`t crank-shaft shield comprising a circular plate portionarranged about the crank-shaft aXis, one end ci which is flared towardthe engine cylinder, means for securing said flared end to the enginecylinder, a tray portion secured to the other end of the circular shieldportion, and means carried by the bed for supporting the tray.

4:. lnra'n engine having a hollow bed pro vided with crankshaft journalboxes, a cylinder supported by the engine-bed, a web extending acrossone end of said engine bed, and tray-supporting means carried by theopposite end of said engine bed; the combination of a twoparl-,removable circular shield disposed aboutthe/crankshaftjournal-boxes of' the engine bed having flared andvextending toward the engine cylinder, means for securing said flaredend to the Iengine cylinder, the opposite end of the shield beingengageahle with the'en'gine bed cross-Web, a flange extending from thelast mentioned end of the circular shield, a tray portion secured tosaid flange having its opposite end in engagement with thetraysupporting means.

5. ln an engine bed having a cylinder, a

supporting base .therefor provided With an end cross-web and atransverse apron, and

lugs extending from the opposite walls of the bed; the combination of atwo part removable crank-shaft shield comprising a circularportionarranged about the axis of the crank-shaft having a flared end securedadjacent to the mouth of thecylinder, a

ltray portion secured to the opposite end of' l have hereunto set myhand vat Port Wash' ington in the county of Ozaukee and State ofllisconsin in the presenceof two witnesses.

A HARRY W. BOLENS. lVitnesses l T. A. BOERNER, A. J. BOERGER.

